Overview
The ADAU1966AWBSTZ, produced by Analog Devices Inc., is a high-performance, single-chip digital-to-analog converter (DAC) designed to provide 16 DAC channels with either differential or single-ended outputs. This component utilizes Analog Devices' patented multibit sigma-delta (Σ-Δ) architecture, ensuring high-quality audio conversion. It operates with 2.5 V digital and 3.3 V analog supplies, and includes a linear regulator to generate the digital supply voltage from the analog supply. The ADAU1966AWBSTZ is packaged in an 80-lead LQFP and is optimized for low electromagnetic interference (EMI) design.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| DAC Dynamic Range (Differential) | - | - | 114 dB | A-weighted |
| DAC Dynamic Range (Single-Ended) | - | - | 110 dB | A-weighted |
| Total Harmonic Distortion + Noise (THD + N), Differential | - | - | -97 dB | - |
| Total Harmonic Distortion + Noise (THD + N), Single-Ended | - | - | -95 dB | - |
| Digital Supply Voltage | 2.25 V | 2.5 V | 3.46 V | - |
| Analog Supply Voltage | 3.14 V | 3.3 V | 3.46 V | - |
| Quiescent Power | - | - | 299 mW | - |
| Sample Rates | 32 kHz | - | 192 kHz | - |
| Number of DACs | - | - | 16 | - |
| Interface | - | - | SPI, I2C, Serial | - |
| Package | - | - | 80-Lead LQFP | - |
Key Features
- Differential or single-ended voltage DAC outputs
- High dynamic range: 114 dB (differential) and 110 dB (single-ended), A-weighted
- Low total harmonic distortion plus noise (THD + N): -97 dB (differential) and -95 dB (single-ended)
- Supports 24-bit and sample rates from 32 kHz to 192 kHz
- Phase-locked loop (PLL) generated or direct master clock
- Low electromagnetic interference (EMI) design
- Linear regulator driver to generate digital supply
- Log volume control with autoramp function
- Temperature sensor with digital readout ±3°C accuracy
- SPI and I2C controllable for flexibility
- Software-controllable clickless mute and power-down
- Right justified, left justified, I2S, and TDM modes
- Master and slave modes with up to 16-channel input/output
Applications
- Automotive audio systems
- Home theater systems
- Digital audio effects processors
Q & A
- What is the ADAU1966AWBSTZ?
The ADAU1966AWBSTZ is a high-performance, single-chip digital-to-analog converter (DAC) produced by Analog Devices Inc.
- How many DAC channels does the ADAU1966AWBSTZ provide?
The ADAU1966AWBSTZ provides 16 DAC channels.
- What are the supported sample rates for the ADAU1966AWBSTZ?
The ADAU1966AWBSTZ supports sample rates from 32 kHz to 192 kHz.
- What is the dynamic range of the ADAU1966AWBSTZ?
The dynamic range is 114 dB (differential) and 110 dB (single-ended), A-weighted.
- What interfaces does the ADAU1966AWBSTZ support?
The ADAU1966AWBSTZ supports SPI, I2C, and serial interfaces.
- What is the power consumption of the ADAU1966AWBSTZ?
The total quiescent power is 299 mW.
- What are the typical supply voltages for the ADAU1966AWBSTZ?
The typical supply voltages are 2.5 V for digital and 3.3 V for analog.
- What is the package type of the ADAU1966AWBSTZ?
The ADAU1966AWBSTZ is packaged in an 80-lead LQFP.
- What are some of the key applications for the ADAU1966AWBSTZ?
Key applications include automotive audio systems, home theater systems, and digital audio effects processors.
- Does the ADAU1966AWBSTZ have any special features for reducing EMI?
Yes, the ADAU1966AWBSTZ is designed with low electromagnetic interference (EMI) in mind, using on-board PLL and continuous time architectures to minimize EMI.
- Can the ADAU1966AWBSTZ be controlled via software?
Yes, the ADAU1966AWBSTZ is software-controllable, supporting features like clickless mute and power-down.
